Fuel saving valve



June 19 1934. M. MALLORY 3,5

- FUEL sgvme VALVE Filed April 20, 1935 MARION MAQLLORY INVENTOR BY I M,,flfl A id- I A ORNEY Patented June 19, 1934 UNITED STATES PATENT;OFFICE 1,963,628 FUEL SAVING VALVE Marion Mallory, Detroit, Mich.,assignor to The v of the resulting diluted mixture,

Mallory Research Company,

corporation of Ohio Application April 20, 1933,

Toledo, Ohio, a

Serial No. cs-1,027

4 Claims. (Cl. 123-117) The object of this invention is tosimultaneously advance the spark by the vacuum above the throttle and,at the same time, open a. valve by the same mechanism which advances thethrottle, which admits air or exhaust gases into the vacuum above thethrottle so that the mixture is diluted and its total quantityincreased. The mere addition of extra air or exhaust gases withoutadvancing the spark, or the advance of the spark without admitting moreair or exhaust gases will not increase the mileage appreciably. Thedilution of the mixture slows up the explosion and hence, to get thefull advantage the spark should be advanced.

The figure shows the preferred form of my invention.

In the figure:-

10 is a circuit breaker, 11 is the arm for advancing the spark, 12 is arod connected to this arm 11 by means of a cable guided by pulleys 33and .34, 13 is a groove in the rod 12, His

'50, 32 is connected with a passage through the guide 15 which thegroove 13 controls. In the position shown, the-groove 13 is out ofalignment with the passage .14, so that the passage 14 is interrupted,as it is not when the shaft 12 is in any other position. The passage 14communicates. with the outlet 16 from a carburetor 1'7 through a pipe3.6. This carburetor is controlled by a throttle valve 18, another pipe19 connects the outlet 16 with valve chamber 20, in which there is areciprocating, cylindrical valve 21; 2 2 is an atmospheric ventadmitting air pressure to operate the valve 21.-

23 is an opening in valve 21, which is shown in alignment with anopening 29, through which the inlet vacuum communicates with a cylinder37. A spring 25 opposes the action of the valve 21. 26 is. an adjustableabutment so that spring 25 can be adjusted exactly. A look nut 2'? isused to lock 26 in place. The valve 21 slides in'the cylinder 24 insidethe casting 20. I 28 is a by-pass for admitting atmospheric air over thetop of valve 21 into the chamber 3'1 when the valve 21 is moved down soas to cut off communication between 19 and 29, 30 is the'body of theoperating cylinder into which the vacuum is admitted from 19 through 29,31 is a spring engaging by means of the wire 35. with a piston 32 insidethe cylinder 37. In itsturn, the piston mospheric vent 38 is provided inthe wall of the. cylinder body 30 to operate the timer l0 incorporates agovernor of a well known type in which the governor weights 39 engagethe piston rod 12. An atpiston 32. The

withua slotted cam plate 40, and thus advance the cam 41 in the usualway. An alternative method of diluting the -mixture by means of exhaustgases is shown on the right, in which an exhaust manifold 42 isconnected with the cylinder 30, through an elbow 43 tapped into theexhaust manifold 42. A pipe 45 connects this elbow with a boss 44,-which communicates with the inside of the cylinder 30. With thisconstruction, the atmospheric vent 38 is closed off.

' Both whenthe exhaust gases are connected and when the atmospheric airis connected, air or gas flows into the passage 14, past the needlevalve 49. When the piston 32 moves to the left under the action ofeither the exhaust gases from 42 or the atmospheric air acting through38, a groove 13 in the piston rod 12 is brought v into alignment-withthe passage 14.

Operation When the engine is idling, vacuum is created in 16, so thatthe vacuum communication from 16 through 19 tothe chamber 24 causes thevalve 21 to move down, so as to place the atmospheric vent 22 incommunication with the passage 28 '80 and thus with the cylinder 37; Thespark is thus not advanced because the spring 31 gives the spark thefull retard when the vacuumin 16 exceeds or equals the vacuum ordinarilyreached when the engine is idling. ."When the vacuum in 16 disappears,as it does when the throttle 18 is wide openjthen the piston 32 moves tothe right,

again retarded. Whenever the that air or exhaust gases are admitted pastthe needle valve 49, down the passage 14, acrossthe groove 13, down thepipe 36, out of the nipple 14 and into the mixture outlet 16. A valve 46is provided in the pipeline 45 and'a valve 4'7 is provided in the pipeline 36, so that the exhaust pressure can be disconnected when inletvacuum is used and vice versa.

-What I claim is:--

1. In an internal combustion engine, an ignition timing device, an inletpassage, a throttle valve therein, a valve admitting air thereto on theengine side of said throttle, inlet vacuum responsive means controllingboth said valve and said ignition timing device, additional means forcontrolling the ignition timing device comprising a centrifugal governoracting independently of said vacuum responsive means.

2. In an internal combustion engine, an ignition device, an inletpassage, 9. throttle valve therein, a valve admitting air thereto on theengine side of said throttle, inlet vacuum responsive means controllingboth said valve and said ignition timing device a valve controlling theadmission of vacuum to said means, additional vacuum responsive meansfor preventing the operation of said first means when the inlet vacuumequals or exceeds the engine idling vacuum, additional means forcontrolling the ignition timing device comprising a centrifugal governoracting independently of said vacuum said first means when the inletvacuum equals or exceeds the engine idling vacuum, additional means forcontrolling the ignition timing device comprising a centrifugal governoracting independently of said vacuum responsive means.

4. In an internal combustion engine, an ignition timing device, an inletpassagaa throttle valve therein, a valve admitting air thereto on theengine side of said throttle, inlet vacuum responsive means adapted toadvance said ignition timing device and to open said valve on anincrease in vacuum, additional vacuum responsive means adapted to admitatmospheric air to said first vacuum responsive means when the inletvacuum equals or exceeds the engine idling vacuum.

- ON MALLORY.

